Type-writing machine.



Patented Apr. 26; 1910.

INVENTUFL \AATNEEEEi TTDH' UNITED" STATES PATENT OFFICE, (El BABIES r. MosHnn, or srmcnsn, NEW yomg ssmnon 'ro THnmoNaRoH TYPE- v wanna-comm, OE SXKACUSE, NEW YORK, A CORPQRATION OF NEW YORK.

concern: Be it knownthat I, CHARLES-P. iMosman, citizen ofthe United States, and resident-of Syracuse, in the county of Onondaga and .State of New York, have invented certain rovenients in Typewhich the following To all whom/it My invention relates to typewriting machines and more especially to the type bar action of such machines.

One of the objects of my invention is to provide a series of type bars, each carrying two types and to connect with each type bar two keys, one' for each type.

.Another object of my invention is to provide a t pe bar carrying two types andso mounte that said type bar may be swung about elther of two pivots to cause one or.

another. of the types to print.

Other objects of my invention will appear hereinafter. a

My invention consists in certain features -of construction and combinations and arrangements of parts, which will be fully set forth herein and particularly pointedmut in the claims.- A In the acbompanying drawings, 'F igure 1 is a front to' rear sectional view of a frontstrike typewriting machine in which my invention is embodied; and Fig; 2 is a detail the ordina troll view in section on the line :rn of Fig. 1.

The main frame'of the typewriting machine shown in the drawings comprises a base portion 1, from which rise posts E which support a top plate 3. A platen 4 is mounted on a carriage which is adapted to ry manner. Said carriage may be drawn across the machine by the usual sprin drum and this motion may be conby any suitable step-by-step feed mechanism.

I have shown my invention'applied to a front-strike t pewriting machine, but said invention is a applicable to other styles of typewriting machines. In the present instance, the type bars'are supported by a fixed segment 5 which is disposed beneath the platenand is supported by posts or brackets 6 which rise from the base. portion 1 of the main frame. Said segment is formedonits forward face with a series of radial slots 7 within which are seated the stems 80f hangbar than the former.

TYPE-WRITING nacnmn.

v Specification of Letters Patent. orgy tented Aipr. 26, 1910. Application filed nay-1, 1905. Serial at. 258,182.

ers' 9, said stems being rigidly held in position within the slots by screws 10 which are threaded into openings which are in the nature of enlargements ofthe slots 7. Each of the hangers 9 is forked, the arms ofthe forked portion extending toward the front of the machine, as shown, and between said 7 forks a circular diskll is pivoted at12.

The pivot. 12 is situated back of the center of the disk 11. Said disk 11' is formed with' a grooved periphery, as shown in Fig. 2,,and constitutes one member of a ball bearing, the

other member of which consists of an internalljy grooved circular openingoreye' inthe rear end of a type bar 13..

' i in the. cod erating grooves of the ty bar'and the di sk run balls 14,-the whtile constituting a ball bearing for the type bar. The construction is such that the type may either swing about the center 15 of the disk 11 as a centerof rotation, said disk remaining stationa'ryf or itmay swing about thepivot 12, the type bar and disk moving together. These two pivotal centers fbar are not coincident, the latter, in the present instance, being nearer the back of the machine than the former.

On the free end ofthe type bar there are 1 mounted two types 16 and 17, the latter being farther from the pivotal end of the type. The construction is such that if the disk 11 beheld stationagand the type bar be swung about saididi as a pivot, the type 17'will describe the path marked a on the drawings" and W11 56 caused to print, whereas if the disk 11 and the type bar be sw mg point, following the p ath b. The type .bar is restored to normal position by a spring 18 connected at one end to an car 19 of the type bar and at theother end to the segment 5.

In order to s ving the type bar 13' and 21,and-said arm extends downwardpast the rim of the eye of the type bar. A link-22 is pivoted at its rear end at 23 to" the-arm 20 and at its forward end at 24 to a sub-lever together about the ivot 12, the type 16 wlll'move to the pr1 nt- 25, which is pivoted at 26 to a key lever 27' which is pivoted at its rear end to a stationary bar 28 and which carries at its forward end a key 29. The sub-lever 25 extends below the key lever 27 and is formed with a gether with the disk 11, thus throwing the type 16 to the printing point. A spring 32 returns the key lever to normal position and tends to hold said key lever and the parts connected therewith in normal posttion. The disk 11 will thus be prevented from turning in case the type bar 13 is thrown to the printing point by OtllQlQllQilIlS than by said key.

In order to swing the type bar about the disk 11' as a pivot, a pin 33 is provided, said pin projecting from the side of the eye of the type bar above the disk 11, just back of an arm 3t which is pivoted on a shouldered and headed screw which is threaded into the disk 11. The arm 3t pro]ects above the type ba'r'and at its free end is pivoted at 35 to the forward endof a link 36, which is pivoted at its rear end as shown at 37 to the upper end of a sub-lever 38, which is pivoted at, 3!) to a key lever 40, which at its rear end is pivoted on a stationary rod or bar 41 and at its forward endhs provided with a key The sub-lever 38 extends below the key lever and is formed with a slot which embraces a stationary rod or bar 43 which is situated nearer the front of the machine than the pivot 39 of the sub-lever. The key lever 40 is returned to and held in normal position by a spring 44. The construction is such that if the key 42 be depressed, the sub-lever 38 will be moved toward the back of the machine, the arm 3-1 will be swung toward the back of the machine and said arm, engaging the pin 33, will swing the type bar about the disk 11 as a pivot, thus'swmging the type 17 to the printing point. Any suitable type-rest. 45 may be provided for supporting the free ends of the type bars when said type bars are in normal position.

Each of the series of type bars is connected-to a key 42 and also to a key 29, the series of keys 1-2 being all arranged back of the series of keys 2%). The types I6 may be lower case types and beoperated by the series of keys 2-9 which is nearest the front of the machine; and the types, 17 may be the correspoluling upper case types which are caused to print by the keys -12 nearer the back of the machine; or the types 16 and 17 may be adapted to print difi'erent characters or numerals.

said type bar about said ball connected with said arm Various changes may be made in the d?- tails of construction and arrangement without departing from my invention.' The ball bearing between the disk 11 and the type bar may be of any suitable construction and may be assembled ilrany suitable manner. So far as my invention is concerned, this need not necessarily be a ball bearing, but may be some other form of pivotal connection. The operating links 22 and 36 may obviously be connected with the keys in different manners. Various etherchanges may be made in the mechanism without departing from the gist of my improvements. What I claim as new and desire to secure by Letters Patent, is I 1. In a typewriting machine, the combi-' nation of a type bar having two types thereonand having one member of a ball bearing, another member of said ball bearing pivoted to swing-about a point eccentric of said ball bearing member, means for swinging bearing member as a pivot to cause one of said types to print, and means for swingin said type bar and said ball bearing member together about the second named pivot as a fixed center to cause the other of said types to print.

2. In a typewriting machine, the combination of a type bar carrying a pluralityot types, a disk 11 having a ball bearing groove in the periphery thereof, a cooperating ball bearing groove in the pivotal end of the type bar, a hanger 9 to which said disk 11 is eccentrically' pivoted, an arm 20 projecting from said disk 11, a key operativelyconnected with said arm, an abutment 31 on said type bar in position to be engaged by said arm, whereby said disk and said type bar may be swung together to cause one of said types to print, an arm 34, a key operativ'ely 34, and an abutment 33 on said type bar whereby said type bar may be swung aboutsaid disk to cause another of said types to print.

3. In a typewriting machine, the combi nation of a typebar carrying two types, two links either of which is adapted to operate said type bar, one of said links pulling in one direction toswing said type bar about one pivot as a fixed center'and the other of said links pulling in the opposite direction to swing said type bar aboutanother pivot as a fixed center, and two keys connected respectively with said links. 4

4. In a typewriting machine, the combination of pivutaily mounted type bar, a'n arm pivotally, mounted beside said type bar, an abutment on said type bar and standing in the path of said arm, and a key operatively connected with said arm. Y

5. In a t-ypewriting machine, the combination of a type bar, two independently operable arms pivotally mounted adjacent to said type bar, two abutments on said type loo bar standing respectively in the paths of vsaid arms, and two keys connected respectively with said arms.-

6. In a front strike typewriting machine,

key may swing said type bar from the same ewthe combination of a type bar normally lying-toward-the front of the machine, two links operatively connected with said t bar, one of said links extending towardt e iarQbi-the machine, and the other of said lfa linksfextending toward the front of the liwthine, two keysoperatively connected -With said links respectively, means whereb when one of said keys is depressed, the link conn'ected with said key swings said type lethal from its normal position'to its printing position in the arc of a circle about one center, and means whereby the other. key swings said type bar from its normal position to its rinting position in the arc of a different ally mounted member to print from the othen'of said types, and means for holdin said ivotally mounted member in normt i position when the type bar is operated by the last mentioned means.

8. In a typewriting machine, the combi- ,;95 nation of a type bar carrying a plurality of types, a plurality of keys, operative connections between each of said keys and said i type bar, means whereby one of said keys may swing said type bar from its normal position to printing position in the arc of a 40 circle about one center to cause one of said types to print, and means whereby another normal position to printing position in the are of another circle about another center to causetfanother of said types to print, said operative connections and said means being so arranged and related as that when one key is actuated the other key andv its operativ'e connections are prevented from being so moved by the operation of the operated keyf 9. In a typewriting machine, the combination of a type bar carrying a plurality of types and having an eye at its pivotal end,

a disk arran ed within said eye, a hanger to which sait ,disk is eccentrically pivoted, means projecting from said'disk, a key oper- -atively connected with said projecting means, an abutment on the type bar in posi- ,tion to be engaged by said means whereby go the disk and type bar may be swung together to cause one o the types to print, an arm connected to the center of said disk, a key operatively connected with said arm, and an abutment on the type bar whereby said type bar may be swung about said disk to cause another of said types toprint while the disk remains stationary.

Signed at Syracuse,. in the county of .Ononda a, and State of New York this 27th 50 day of i pril A. D. 1905.

CHARLES P. MOSHER.

lVitnesses:

H. A. AUMENT, WALTON C. COOK. 

